This was your case in your first post, that’s why I gave you my previous answer,
As I mentioned before, no needs to this step before or after mt_snap_prep,
In this case are you sure from all your data, are they all in the same orbit, Frame and slice?
Also from your screenshot it seems that you used snap2tamps, Don’t you?
If yes, this mean everything went automatically without checking your results, anyway in case you’re sure from your data,
I suggest to you apply this Script,